Abstract
The photoluminescence characteristics of electrospun ZnO/poly[2-methoxy-5- (2-ethylhexyloxy)-1,4-phenylenevinylene]/poly(ethylene oxide) (ZnO/MEH-PPV/PEO) composite nanofibers with various composite ratios of ZnO nanoparticles (NPs) and MEH-PPV are investigated in this study. The photoluminescence spectra of the nanofibers show sequential red- and blue-shifts in the peak wavelength with increasing concentration of ZnO NPs. For the nanofibers in which their concentration is relatively low, the dispersed ZnO NPs induce the aggregation of MEH-PPV, resulting in the red-shift of the peaks. In contrast, for the nanofibers with relatively high concentrations of ZnO NPs (over 50%), the blue-shift of the peaks occurs. The mechanisms of the red- and blue-shifts are discussed in this paper.
Original language | English |
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Pages (from-to) | 79-82 |
Number of pages | 4 |
Journal | Journal of Luminescence |
Volume | 134 |
DOIs | |
Publication status | Published - 2013 Feb |
Keywords
- Electrospun fibers
- Luminescence
- MEH-PPV
- ZnO nanoparticle
ASJC Scopus subject areas
- Biophysics
- Biochemistry
- Chemistry(all)
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics